Installation Requirements; Tools And Parts; System Requirements; Location Requirements - Whirlpool W2GH3 Installation Instructions Manual

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These instructions are intended as a general guide only and do
not supersede any national or local codes in any way. The
installation must comply with all state, and local codes as well as
the National Electrical Code.
The heat pump is designed and approved for outdoor use
The heat pump must be installed with no ductwork in the
airstream. The outdoor fan is not designed to operate against
any additional static pressure.

Tools and Parts

Gather the required tools and parts before starting installation.
Read and follow the instructions provided with any tools listed
Tools needed
⁵⁄₁₆" nut driver
Parts needed
Check local codes and HVAC supplier. Check existing electrical
supply, and read "Electrical Requirements," "Location
Requirements," "System Requirements" and "Connect
Refrigerant Lines."

System Requirements

Heat pump system matches are derived from actual laboratory
testing of matched systems. It is recommended that only
matching equipment be used to ensure proper operation and
efficient performance.
The designed system matches are listed in the heat pump
unit specification sheets and on the heat pump refrigerant
charging instructions located on the back of the service
access panel.
Refrigerant charging instructions include a list of matching
indoor equipment with the proper expansion device size and
amount of refrigerant charge required.
This heat pump has been factory charged with a quantity of
refrigerant (R22) sufficient for a matched indoor coil and a
maximum 15 ft of refrigerant line.
Indoor System Expansion Device
Check the indoor coil expansion device to see whether it
matches the required expansion device for the indoor coil
and heat pump combination being installed.
Refer to the refrigerant charge label located on the inside of
the heat pump access panel for the correct expansion device
size required.
Replace the expansion device with the correct size if this size
is not already installed in the indoor coil. Instructions for
replacing the expansion device are provided with the indoor


¹⁄₄" nut driver

Location Requirements

This heat pump is designed to be located outdoors with
sufficient clearance for free entrance to the inlet and
discharge air openings. The location must also allow for
adequate service access. See "Minimum Clearances."
Where possible, select a location for the heat pump which is
shaded from the direct rays of the sun most of the time. North
or east locations are usually most desirable. Position the heat
pump to avoid direct contact with water, snow or ice from a
roofline overhead.
The heat pump must be installed on a solid, level mounting
pad that will not settle or shift. Isolate the pad from the
building structure to avoid possible transmission of sound or
vibration from the heat pump into the conditioned space.
The heat pump foundation should be raised to a minimum of
3" above finish grade. In areas which have prolonged periods
of temperatures below freezing, and/or snowfall, the heat
pump should be elevated above the average snow line. If
heat pump is to be installed on a flat roof, it should be on a
platform or other support which will raise the inlet air opening
12" minimum above the surface of the flat roof.
Care should be taken to ensure free drainage of condensate
from defrost cycles. This will prevent ice accumulation. The
heat pump should be located away from walkways to prevent
possible icing from defrost condensate.
Avoid placing the heat pump near areas such as sleeping
quarters or study rooms. Normal operating sound levels may
be objectionable if the heat pump is placed near certain
rooms. A shift in sound type does occur during the defrost
mode. The defrost mode generally lasts no longer than
10 minutes.
Minimum Clearances
48" Overhead
12" Clearance
(Inlet Air)
30" Service
36" Clearance
Access Clearance
(Inlet Air)
A. Outdoor rated disconnect switch
B. NEC class 1 wiring
C. NEC class 2 wiring
12" Clearance Between
Unit and Building
D. House thermostat
E. Seal openings


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